| Brian Knorr | |
| Current Title: | Defensive coordinator |
| Current Team: | Air Force |
| Current Conference: | MW |
| Birth Date: | 20 December 1963 |
| Birth Place: | Shawnee Mission, Kansas, U.S. |
| Player Years1: | 1982–1985 |
| Player Team1: | Air Force |
| Player Positions: | Quarterback |
| Coach Years1: | 1992–1994 |
| Coach Team1: | Air Force (assistant OL/JV) |
| Coach Years2: | 1995–1998 |
| Coach Team2: | Ohio (ILB) |
| Coach Years3: | 1999–2000 |
| Coach Team3: | Ohio (DC) |
| Coach Years4: | 2001–2004 |
| Coach Team4: | Ohio |
| Coach Years5: | 2005–2006 |
| Coach Team5: | Air Force (OLB/S) |
| Coach Years6: | 2007 |
| Coach Team6: | Air Force (AHC/ILB) |
| Coach Years7: | 2008–2010 |
| Coach Team7: | Wake Forest (WR) |
| Coach Years8: | 2011 |
| Coach Team8: | Wake Forest (co-DC/ILB) |
| Coach Years9: | 2012 |
| Coach Team9: | Wake Forest (DC/ILB) |
| Coach Years10: | 2013 |
| Coach Team10: | Wake Forest (DC/OLB) |
| Coach Years11: | 2014–2015 |
| Coach Team11: | Indiana (DC/DE/OLB) |
| Coach Years12: | 2016 |
| Coach Team12: | Ohio State (STQC) |
| Coach Years13: | 2017 |
| Coach Team13: | Arizona (ST/TE) |
| Coach Years14: | 2018–2021 |
| Coach Team14: | Air Force (AHC/ILB) |
| Coach Years15: | 2022–present |
| Coach Team15: | Air Force (DC/ILB) |
| Overall Record: | 11–35 |
Brian Knorr (born December 20, 1963) is an American college football coach who is the defensive coordinator for the Air Force Falcons. He graduated from the Air Force Academy and played quarterback. He also was an assistant at the Air Force Academy when he went to Ohio University with Jim Grobe. He was the head coach of the Ohio Bobcats program from 2001 to 2004. He was fired on November 18, 2004,[1] after he compiled an 11–35 (.239) record in four seasons. He was replaced by the more successful Frank Solich. He previously served as a defensive coordinator under the previous head coach, Grobe. His best season came in 2004, when his team went 4–7, including 2–6 in conference play. Until February 2008 he served as an assistant head coach at the Air Force Academy under head coach Troy Calhoun. In 2008, he accepted a position that reunited him with Grobe at Wake Forest University. In 2014 and 2015 he held the DC position for the Indiana Hoosiers football team. In January, 2016, Knorr did not have his contract renewed by Indiana.[2]
On June 29, 2016, Knorr was hired by Ohio State as a Quality Control Assistant under coach Urban Meyer.[3] Knorr left Ohio State to become the Special Teams and Defensive Ends coach at the University of Arizona. In March 2018, Knorr was Hired as a Defensive Assistant at Air Force, making it his third stint at the Academy. [4]